Gaya APA
Krueger, Richard A.. (1998).
Developing questions for focus groups (3).
USA:
Sage Publications,.
Gaya Chicago
Krueger, Richard A..
Developing questions for focus groups.
3
USA:
Sage Publications,,
1998.
Text.
Gaya MLA
Krueger, Richard A..
Developing questions for focus groups.
3
USA:
Sage Publications,,
1998.
Text.
Gaya Turabian
Krueger, Richard A..
Developing questions for focus groups.
3
USA:
Sage Publications,,
1998.
Print.